http://www.ciscopress.com/articles/article.asp?p=1684781&seqNum=3
There are three significant approaches that use certificates. The first approach uses certificate revocation lists (CRL), which are periodically downloaded to a router and thus require lower overhead. The second approach uses OCSP, which provides real-time updates and makes a network call for each certificate that is presented. The third approach uses an AAA server and certificates together, which involves the end user performing authentication.
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Arshy
5 years agoliketopass
5 years, 6 months ago